/**
 * #      689
 * 名称   三个无重叠子数组的最大和
 * 链接   https://leetcode-cn.com/problems/maximum-sum-of-3-non-overlapping-subarrays
 * 题解   [46](https://leetcode-cn.com/problems/maximum-sum-of-3-non-overlapping-subarrays/solution)
 * 通过率 47.5%
 * 难道   困难
 */

